ITI Workshop Calculation and Science MCQ PDF [Hindi] 2023

ITI Workshop Calculation and Science MCQ PDF in Hindi. WCS New Question bank provided by DGT. Helpful for CTS 2023 Exam paper preparation.

ITI Workshop Calculation and Science MCQ

1. Which effect of electric current is applicable in the working of generator and motor?

a) thermal effect

b) chemical effect

c) magnetic effect

d) physical effect

Answer – c

2. Which relation is not correct?

a) 1 dyne × 1 cm = 1 erg

b) 1 newton × 1 meter = 1 joule

c) 1 joule = 107 ergs

d) 1 kilogram meter = 8.9 joules

Answer – d

3. 1 bar atmospheric pressure is equal to _________.

a) 1000,000 pascals

b) 100,000 pascals

c) 10,000 pascals

d) 1000 pascal

Answer – b

4. 1 B.T.U. =

a) 252 Calories

b) 522 Calories

c) 225 Calories

d) 250 Calories

Ans. a

5. Which of the following equations is for Ohm’s law?

a) W =Fd

b) V = IR

c) R = IV

d) PE = mgh

Ans. b

6. Which of the following helps in reducing friction in the working of machines?

a) use of belt drive

b) decreasing speed of the machine

c) use of ball and roller bearings

d) increasing speed of the machine

Answer – c

7. Which instrument is used to measure thermal properties, such as heat capacity or heat produced by a fuel?

a) pyrometer

b) Hydrometer

c) Calorimeter

d) manometer

Answer – c

8. Which law of Newton is also called “law and inertia”?

a) Newton’s first law of motion

b) Newton’s second law of motion

c) Newton’s Third Law of Motion

d) none of these

Answer – a

9. What is the unit of plane angle?

a) degree

b) radian

c) steradian

d) mole

Answer – b

10. “Cyaniding” and “Nitriding” are two methods of __________.

a) Hardening

b) Normalising

c) Annealing

d) Case hardening

Answer – d

11. Momentum of a body = _______

a) mass x acceleration

b) Mass x velocity

c) acceleration x velocity

d) mass x velocity

Answer – b

12. The main alloying elements of stainless steel are :-

a) chromium and nickel

b) chromium and tungsten

c) nickel and vanadium

d) nickel and tungsten

Answer – a

13. The alloy of brass is ______.

a) copper and tin

b) lead and tin

c) copper and zinc

d) copper and silver

Answer – c

14. The SI unit of length is :-

a) millimeter

b) centimeter

c) decimeter

d) meter

Answer – d

15. The SI unit of temperature is:-

a) Celsius

b) Fahrenheit

c) Kelvin

d) Rankine

Answer – c

16. The part of the circle between any two points on the circumference of the circle is called

a) segment

b) sector

c) tangent

d) Arch

Answer – a

17. Nichrome is widely used as resistance wire for electrical equipment. It consists of:-

a) lead and chromium

b) tin and copper

c) chromium and copper

d) Nickel and Chromium

Answer – d

18. Gray cast iron is ______.

a) brittle

b) ductile

c) traumatic

d) hard

Answer – a

19. Which cast iron contains carbon in the form of graphite?

a) white cast iron

b) Ductile Cast Iron

c) gray cast iron

d) Nodular cast iron

Answer = c

20. The difference in diameter at the center and edge of a pulley is called _______.

a) head

b) Crown

c) inclination

d) peak

Answer – b

21. Which of the following is not an example of reducing losses due to friction?

a) making the surface smooth

b) using lubricants

c) change of rolling friction to sliding friction

d) change of sliding friction to rolling friction

Answer – c

22. The complementary SI unit of plane angle is _____.

a) degree

b) minutes

c) radian

d) second

Answer – c

23. An angle which is more than 180 but less than 360 is called ________.

a) reflex angle

b) acute angle

c) obtuse angle

d) right angle

Answer – a

24. The law of pressure is: –

a) Force x Area

b) Force/Area

c) Force + Area

d) Force – Area

Ans. b

25. Which of the following is the pure form of iron?

a) wrought iron

b) cast iron

c) Pig iron

d) Steel

Ans. a

26. Which of the following is not a physical property of a metal?

a) color

b) load

c) tensile strength

d) conductivity

Answer – c

27. What is the formula for determining the mass of an object? (where w = weight, m ​​= mass, g = force of gravity)

a) m = w/g

b) w = m/g

c) m = 1/2W*g

d) w = g/m

Ans. a

28. Friction can be increased by the use of ______.

a) sand

b) water

c) lubricant

d) ball bearings

Answer – a

29. Which SI unit of electric current is ______ |

a) ampere

b) voltage

c) Ohm

d) Wait

Answer – a

30. Which one of the following is a non-conducting substance?

a) rubber

b) Iron

c) aluminum

d) steel

Answer – a

31. The amount of heat required to change unit mass of a solid substance from solid state to liquid state is known as _____, while the temperature remains constant.

a) latent heat

b) little heat

c) latent cooling

d) latent heat of fusion

Answer – d

32. Steel containing 0.8 to 1.5% carbon is known as _____.

a) high carbon steel

b) low carbon steel

c) Mild steel

d) medium carbon steel

Answer – a

33. Steel is an alloy of carbon and ______.

a) iron

b) aluminum

c) platinum

d) copper

Answer – a

34. Steel containing 0.35 to 0.6% carbon is known as ______.

a) high carbon steel

b) low carbon steel

c) medium carbon steel

d) Tool steel

Answer – c

35. Which of the following can conduct electricity?

a) fiber

b) Felt

c) graphite

d) Porcelain

Answer – c

36. The property of a material which causes it to break with little permanent deformation is called _____.

a) brittleness

b) elasticity

c) plasticity

d) tensile

Answer – a

37. Which of the following metals is used for galvanizing?

a) tin

b) zinc

c) lead

d) copper

Answer – b

38. A fuse provides _______ in an electrical circuit.

a) short circuit protection

b) overload protection

c) Protection against both short circuit and overload

d) none of these

Answer – c

39. Friction changes the energy of an object from kinetic energy to ______.

a) electric energy

b) stored energy

c) Heat energy

d) wind power

Answer – c

40. What is the formula for determining the weight of an object? (where W = weight, M = mass, g = force of gravity)

a) W = m*g

b) W = m/g

c) W = 1/2m*g

d) W = g/m

Ans. a